package com.thinkbiganalytics.policy.utils;

/*-
 * #%L
 * kylo-field-policy-default
 * %%
 * Copyright (C) 2017 - 2018 ThinkBig Analytics
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.Validate;

import java.util.regex.Pattern;

public class JodaUtils {

    final static private Pattern pEscapedSingleQuotes = Pattern.compile("''");
    final static private Pattern pQuotedText = Pattern.compile("'[^'].*'(?!')");
    final static private Pattern pNonTime = Pattern.compile("[^aKhHkmsSzZ]");

    private JodaUtils() {} // prevent instantiation

    public static boolean formatContainsTime(String jodaDateFormat ) {
        Validate.notNull(jodaDateFormat, "null jodaDateFormat not allowed");

        String noEscapedSingleQuotes = pEscapedSingleQuotes.matcher(jodaDateFormat).replaceAll("");
        String noQuotedText = pQuotedText.matcher(noEscapedSingleQuotes).replaceAll("");
        String onlyTimeText = pNonTime.matcher(noQuotedText).replaceAll("");

        return StringUtils.isNotEmpty(onlyTimeText);
    }

}
